PMID- 30319405 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201001 IS - 1663-9812 (Print) IS - 1663-9812 (Electronic) IS - 1663-9812 (Linking) VI - 9 DP - 2018 TI - Clozapine Pharmacogenetic Studies in Schizophrenia: Efficacy and Agranulocytosis. PG - 1049 LID - 10.3389/fphar.2018.01049 [doi] LID - 1049 AB - Clozapine is an efficacious atypical antipsychotic for treatment-refractory schizophrenia. Clinical response and appearance of adverse events vary among individual patients receiving clozapine, with genetic and non-genetic factors potentially contributing to individual variabilities. Pharmacogenetic studies investigate associations between genetic variants and drug efficacy and toxicity. To date, most pharmacogenetic studies of clozapine have been conducted through candidate gene approaches. A recent advance in technology made it possible to perform comprehensive genetic mapping underlying clinical phenotypes and outcomes, which allow novel findings beyond biological hypotheses based on current knowledge. In this paper, we will summarize the studies on clozapine pharmacogenetics that have extensively examined clinical response and agranulocytosis. While there is still limited evidence on clozapine efficacy, recent genome-wide studies provide further evidence of the involvement of the human leukocyte antigen (HLA) region in clozapine-induced agranulocytosis. FAU - Numata, Shusuke AU - Numata S AD - Department of Psychiatry, Institute of Biomedical Science, Tokushima University Graduate School, Tokushima, Japan. FAU - Umehara, Hidehiro AU - Umehara H AD - Department of Psychiatry, Institute of Biomedical Science, Tokushima University Graduate School, Tokushima, Japan. FAU - Ohmori, Tetsuro AU - Ohmori T AD - Department of Psychiatry, Institute of Biomedical Science, Tokushima University Graduate School, Tokushima, Japan. FAU - Hashimoto, Ryota AU - Hashimoto R AD - Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan. AD - Molecular Research Center for Children's Mental Development, United Graduate School of Child Development, Osaka University, Osaka, Japan. AD - Department of Pathology of Mental Diseases, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan. LA - eng PT - Journal Article PT - Review DEP - 20180926 PL - Switzerland TA - Front Pharmacol JT - Frontiers in pharmacology JID - 101548923 PMC - PMC6169204 OTO - NOTNLM OT - GWAS OT - SNP OT - agranulocytosis OT - clinical response OT - clozapine OT - pharmacogenetics OT - review OT - schizophrenia EDAT- 2018/10/16 06:00 MHDA- 2018/10/16 06:01 PMCR- 2018/09/26 CRDT- 2018/10/16 06:00 PHST- 2018/06/11 00:00 [received] PHST- 2018/08/30 00:00 [accepted] PHST- 2018/10/16 06:00 [entrez] PHST- 2018/10/16 06:00 [pubmed] PHST- 2018/10/16 06:01 [medline] PHST- 2018/09/26 00:00 [pmc-release] AID - 10.3389/fphar.2018.01049 [doi] PST - epublish SO - Front Pharmacol. 2018 Sep 26;9:1049. doi: 10.3389/fphar.2018.01049. eCollection 2018.